Beispiel #1
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 def rebuild( self, gridRect ):
     """
     Rebuilds the tracker item.
     """
     scene = self.scene()
     if ( not scene ):
         return
     
     self.setVisible(gridRect.contains(self.pos()))
     self.setZValue(100)
     
     path = QPainterPath()
     path.moveTo(0, 0)
     path.lineTo(0, gridRect.height())
     
     tip             = ''
     tip_point       = None
     self._ellipses  = []
     items           = scene.collidingItems(self)
     self._basePath  = QPainterPath(path)
     
     for item in items:
         item_path = item.path()
         found = None
         for y in range(int(gridRect.top()), int(gridRect.bottom())):
             point = QPointF(self.pos().x(), y)
             if ( item_path.contains(point) ):
                 found = QPointF(0, y - self.pos().y())
                 break
         
         if ( found ):
             path.addEllipse(found, 6, 6)
             self._ellipses.append(found)
             
             # update the value information
             value     = scene.valueAt(self.mapToScene(found))
             tip_point = self.mapToScene(found)
             hruler    = scene.horizontalRuler()
             vruler    = scene.verticalRuler()
             
             x_value = hruler.formatValue(value[0])
             y_value = vruler.formatValue(value[1])
             
             tip = '<b>x:</b> %s<br/><b>y:</b> %s' % (x_value, y_value)
     
     self.setPath(path)
     self.setVisible(True)
     
     # show the popup widget
     if ( tip ):
         anchor    = XPopupWidget.Anchor.RightCenter
         widget    = self.scene().chartWidget()
         tip_point = widget.mapToGlobal(widget.mapFromScene(tip_point))
         
         XPopupWidget.showToolTip(tip, 
                                  anchor = anchor,
                                  parent = widget,
                                  point  = tip_point,
                                  foreground = QColor('blue'),
                                  background = QColor(148, 148, 255))
Beispiel #2
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 def setColor(self, color):
     """
     Sets the color for this widget.
     
     :param      color | <QColor> || <str>
     """
     self._color = QColor(color)
     self.setAlternateColor(self._color.darker(110))
Beispiel #3
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 def setHighlightColor(self, color):
     """
     Sets the primary color used for highlighting this item.
     
     :param      color | <QColor>
     """
     self._highlightColor = QColor(color)
     self.setAlternateHighlightColor(self._highlightColor.darker(110))
Beispiel #4
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 def setProgressColor(self, color):
     """
     Sets the color that for the progress bar for this item.
     
     :param      color | <QColor>
     """
     self._progressColor = QColor(color)
     self.setAlternateProgressColor(self._progressColor.darker(110))
 def setColor(self, color):
     """
     Sets the color for this widget to the inputed color.
     
     :param      color | <QColor>
     """
     self._color = QColor(color)
     self.setAlternateColor(self._color.lighter(140))
Beispiel #6
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 def __init__(self, rect, slot, name='', toolTip=''):
     self._rect = rect
     self._slot = slot
     self._name = name
     self._hovered = False
     self._enabled = True
     self._customData = {}
     self._toolTip = toolTip
     self._style = XNodeHotspot.Style.Invisible
     self._icon = None
     self._hoverIcon = None
     self._color = QColor('white')
     self._borderColor = QColor('gray')
     self._visibilityPolicy = XNodeHotspot.VisibilityPolicy.Always
Beispiel #7
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 def paintEvent(self, event):
     """
     Handles the drawing for this widget and its selection region.
     
     :param      event | <QPaintEvent>
     """
     pen = QPen(Qt.DashLine)
     pen.setColor(QColor('red'))
     with XPainter(self) as painter:
         painter.setPen(pen)
         clr = QColor('black')
         clr.setAlpha(100)
         painter.setBrush(clr)
         
         painter.drawRect(self._region)
Beispiel #8
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 def setBorderColor(self, color):
     """
     Sets the border base color for this renderer to the inputed color.
     
     :param      color | <QColor>
     """
     self._borderColor = QColor(color)
Beispiel #9
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 def setAxisColor(self, color):
     """
     Sets the axis base color for this renderer to the inputed color.
     
     :param      color | <QColor>
     """
     self._axisColor = QColor(color)
Beispiel #10
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 def setAlternateColor(self, color):
     """
     Sets the alternate base color for this renderer to the inputed color.
     
     :param      color | <QColor>
     """
     self._alternateColor = QColor(color)
Beispiel #11
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 def setTextColor(self, color):
     """
     Sets the text color for this instance to the inputed color.
     
     :param      color | <QColor>
     """
     self.editor().setTextColor(QColor(color))
Beispiel #12
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 def setFillColor(self, color):
     """
     Sets the color that will be used for the fill of this item.
     
     :param      color | <QColor>
     """
     self._fillColor = QColor(color)
Beispiel #13
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 def setHighlightColor(self, color):
     """
     Sets the color that will be used for the highlight of this item.
     
     :param      color | <QColor>
     """
     self._highlightColor = QColor(color)
Beispiel #14
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 def setBorderColor(self, color):
     """
     Sets the color that will be used for the border of this item.
     
     :param      color | <QColor>
     """
     self._borderColor = QColor(color)
Beispiel #15
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 def setAlternateHighlightColor(self, color):
     """
     Sets the alternate selection color for this item to the inputed color.
     
     :param      color | <QColor>
     """
     self._alternateHighlightColor = QColor(color)
Beispiel #16
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 def setTextColor(self, color):
     """
     Sets the color that will be used for this widget's text.
     
     :param      color | <QColor> || <str>
     """
     self._textColor = QColor(color)
Beispiel #17
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 def setValidBackground( self, bg ):
     """
     Sets the valid background color for this widget to the inputed color.
     
     :param      bg | <QColor>
     """
     self._validBackground = QColor(bg)
Beispiel #18
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    def fromString(cls, strdata):
        """
        Restores a color set instance from the inputed string data.
        
        :param      strdata | <str>
        """
        if (not strdata):
            return None

        from xml.etree import ElementTree

        xelem = ElementTree.fromstring(str(strdata))
        output = cls(xelem.get('name'), xelem.get('colorGroups').split(','))

        for xcolor in xelem:
            colorName = xcolor.get('name')

            for xcolorval in xcolor:
                color = QColor(int(xcolorval.get('red')),
                               int(xcolorval.get('green')),
                               int(xcolorval.get('blue')),
                               int(xcolorval.get('alpha')))

                output.setColor(colorName, color, xcolorval.get('group'))

        return output
 def setAlternateColor(self, color):
     """
     Sets the alternate color for this widget to the inputed color.
     
     :param      color | <QColor>
     """
     self._alternateColor = QColor(color)
 def color(self):
     """
     Returns the primary color for this item.
     
     :return     <QColor>
     """
     return QColor(self._color)
 def alternateColor(self):
     """
     Returns the alternate color for this item.
     
     :return     <QColor>
     """
     return QColor(self._alternateColor)
Beispiel #22
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 def setValidForeground( self, fg ):
     """
     Sets the valid foreground color for this widget to the inputed color.
     
     :param      fg | <QColor>
     """
     self._validForeground = QColor(fg)
Beispiel #23
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 def setHintColor(self, color):
     """
     Sets the color used for the hint rendering.
     
     :param      color | <QColor>
     """
     self._hintColor = QColor(color)
Beispiel #24
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 def setColor( self, color ):
     """
     Sets the color for this tracker item to the given color.
     
     :param      color | <QColor>
     """
     self._color = QColor(color)
 def setColor( self, color ):
     """
     Sets the color for this widget to the inputed color.
     
     :param      color | <QColor>
     """
     self._color = QColor(color)
     self.setAlternateColor(self._color.lighter(140))
Beispiel #26
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 def setTextColor(self, textColor):
     """
     Sets the text color that will be used for this item to the inputed
     color.
     
     :param      textColor | <QColor>
     """
     self._textColor = QColor(textColor)
Beispiel #27
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 def setProgressColor( self, color ):
     """
     Sets the color that for the progress bar for this item.
     
     :param      color | <QColor>
     """
     self._progressColor = QColor(color)
     self.setAlternateProgressColor(self._progressColor.darker(110))
Beispiel #28
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 def setHighlightColor( self, color ):
     """
     Sets the primary color used for highlighting this item.
     
     :param      color | <QColor>
     """
     self._highlightColor = QColor(color)
     self.setAlternateHighlightColor(self._highlightColor.darker(110))
Beispiel #29
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 def setColor( self, color ):
     """
     Sets the color for this widget.
     
     :param      color | <QColor> || <str>
     """
     self._color = QColor(color)
     self.setAlternateColor(self._color.darker(110))
Beispiel #30
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    def color(self, name, colorGroup=None):
        """
        Returns the color for the given name at the inputed group.  If no \
        group is specified, the first group in the list is used.
        
        :param      name        | <str>
                    colorGroup  | <str> || None
            
        :return     <QColor>
        """
        if (not colorGroup and self._colorGroups):
            colorGroup = self._colorGroups[0]

        if (not colorGroup):
            return QColor()

        return self._colors.get(str(name), {}).get(str(colorGroup), QColor())
Beispiel #31
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 def setAlternateProgressColor(self, color):
     """
     Sets the alternate progress color that will be used when drawing a
     progress bar for this item.
     
     :return     <QColor>
     """
     self._alternateProgressColor = QColor(color)
Beispiel #32
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 def __init__(self, **options):
     # define custom properties
     self._name = options.get('name', '')
     self._color = QColor(options.get('color', self.randomColor()))
     self._colorMap = {}
     self._plot = options.get('plot', [])
     self._visible = True
     self._dragData = {}
 def setKeyColor(self, key, color):
     """
     Sets the color used when rendering pie charts.
     
     :param      key   | <str>
                 color | <QColor>
     """
     self._keyColors[nativestring(key)] = QColor(color)
Beispiel #34
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 def randomColor(self):
     """
     Returns a random color for this dataset.
     
     :return     <QColor>
     """
     return QColor(random.randint(90, 200), random.randint(90, 200),
                   random.randint(90, 200))
Beispiel #35
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 def __init__(self, treeItem):
     super(XGanttViewItem, self).__init__()
     
     # define custom properties
     self._color                     = QColor('white')
     self._alternateColor            = QColor(230, 230, 230)
     self._highlightColor            = QColor('yellow')
     self._alternateHighlightColor   = self._highlightColor.darker(110)
     self._textColor                 = QColor('black')
     self._borderColor               = QColor(50, 50, 50)
     self._progressColor             = QColor(200, 200, 250)
     self._alternateProgressColor    = QColor(180, 180, 230)
     self._showProgress              = True
     self._padding                   = 3
     self._borderRadius              = 5
     self._percentComplete           = 0
     self._text                      = ''
     self._syncing                   = False
     self._treeItem                  = weakref.ref(treeItem)
     
     # setup standard properties
     flags  = self.ItemIsSelectable 
     flags |= self.ItemIsFocusable
     
     if treeItem.flags() & Qt.ItemIsEditable:
         flags |= self.ItemIsMovable
     
     effect = QGraphicsDropShadowEffect()
     effect.setXOffset(0)
     effect.setYOffset(0)
     effect.setColor(QColor(40, 40, 40, 100))
     effect.setBlurRadius(10)
     
     self.setFlags( flags )
     self.setAcceptHoverEvents(True)
     self.setGraphicsEffect(effect)
     
     # need this flag for Qt 4.6+
     try:
         self.setFlag(self.ItemSendsGeometryChanges)
     except AttributeError:
         pass
Beispiel #36
0
 def drawItem(self, item, painter, option):
     """
     Draws the inputed item as a bar graph.
     
     :param      item    | <XChartDatasetItem>
                 painter | <QPainter>
                 option  | <QStyleOptionGraphicsItem>
     """
     dataset = item.dataset()
     
     painter.save()
     painter.setRenderHint(painter.Antialiasing)
     
     pen = QPen(dataset.color())
     pen.setWidth(0.75)
     painter.setPen(pen)
     
     for path in item.buildData('subpaths', []):
         gradient = QLinearGradient()
         
         clr = QColor(dataset.color())
         clr.setAlpha(220)
         
         gradient.setColorAt(0.0,  clr.lighter(180))
         gradient.setColorAt(0.1,  clr.lighter(160))
         gradient.setColorAt(0.25, clr.lighter(140))
         gradient.setColorAt(1.0,  clr.lighter(125))
         
         if self.orientation() == Qt.Vertical:
             gradient.setStart(0, path.boundingRect().bottom())
             gradient.setFinalStop(0, path.boundingRect().top())
         else:
             gradient.setStart(path.boundingRect().left(), 0)
             gradient.setFinalStop(path.boundingRect().right(), 0)
         
         painter.setBrush(gradient)
         painter.drawPath(path)
     
     painter.restore()
Beispiel #37
0
    def setRecordState(self, recordState):
        """
        Sets the record state for this item to the inputed state.
        
        :param      recordState | <XOrbRecordItem.State>
        """
        self._recordState = recordState

        try:
            is_colored = self.treeWidget().isColored()
        except AttributeError:
            return

        if not is_colored:
            return

        # determine the color for the item based on the state
        if recordState & XOrbRecordItem.State.Removed:
            clr = self.treeWidget().colorSet().color("RecordRemoved")
        elif recordState & XOrbRecordItem.State.New:
            clr = self.treeWidget().colorSet().color("RecordNew")
        elif recordState & XOrbRecordItem.State.Modified:
            clr = self.treeWidget().colorSet().color("RecordModified")
        else:
            clr = None

        # set the color based on the record state
        if clr is not None:
            clr = QColor(clr)
            clr.setAlpha(40)
            brush = QBrush(clr)
        else:
            brush = QBrush()

        for c in range(self.treeWidget().columnCount()):
            self.setBackground(c, brush)
Beispiel #38
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 def setColor( self, color ):
     """
     Convenience method to set the border, fill and highlight colors based
     on the inputed color.
     
     :param      color | <QColor>
     """
     # sets the border color as the full value
     self.setBorderColor(color)
     
     # set the highlight color as the color with a 140 % alpha
     clr = QColor(color)
     clr.setAlpha(150)
     self.setHighlightColor(clr)
     
     # set the fill color as the color with a 50 % alpha
     clr = QColor(color)
     clr.setAlpha(80)
     self.setFillColor(clr)
class XChartWidgetItem(QGraphicsPathItem):
    def __init__( self ):
        super(XChartWidgetItem, self).__init__()
        
        self.setAcceptHoverEvents(True)
        
        # set default information
        self._chartType         = None
        self._pieCenter         = QPointF(0, 0)
        self._subpaths          = []
        self._keyColors         = {}
        self._ellipses          = []
        self._keyToolTips       = {}
        self._showPointsInLine  = True
        self._shaded            = True
        self._dragData          = {}
        self._radius            = 6
        
        self._title             = ''
        self._color             = self.randomColor()
        self._alternateColor    = self._color.lighter(140)
        self._points            = []
        self._barSize           = 30
        self._orientation       = Qt.Horizontal
        self._pieAxis           = Qt.YAxis
        
        self._pointRadius       = 6
        self._horizontalOffset  = 0
        self._verticalOffset    = 0
        
        self._hoveredPath       = None
        self._dirty             = False
        self._buildData         = {}
    
    def addPoint( self, x, y ):
        """
        Adds a new chart point to this item.
        
        :param      x | <variant>
                    y | <variant>
        """
        self._points.append((x, y))
        self._dirty = True
    
    def alternateColor( self ):
        """
        Returns the alternate color for this item.
        
        :return     <QColor>
        """
        return QColor(self._alternateColor)
    
    def barSize( self ):
        """
        Returns the size that the bar chart should be rendered with.
        
        :return     <int>
        """
        return self._barSize
    
    def chartType( self ):
        """
        Returns the chart type for this item.  If no type is explicitely set,
        then the scenes chart type will be utilized.
        
        :return     <XChartScene.Type>
        """
        if ( self._chartType ):
            return self._chartType
        
        scene = self.scene()
        if ( not scene ):
            return 0
        
        return scene.chartType()
    
    def clear( self ):
        """
        Clears the chart points from this item.
        """
        self._points = []
        self._dirty = True
    
    def color( self ):
        """
        Returns the primary color for this item.
        
        :return     <QColor>
        """
        return QColor(self._color)
    
    def dragData(self, x=None, y=None):
        """
        Returns any drag information that will be used from this chart item.
        
        :return     <QMimeData> || None
        """
        # look for specific drag information for this item
        first  = (x, y)
        second = (x, None)
        third  = (None, y)
        fourth = (None, None)
        
        for key in (first, second, third, fourth):
            data = self._dragData.get(key)
            if data:
                return data
        
        return None
    
    def hasCustomType( self ):
        """
        Returns true if this item defines its own chart type.
        
        :return     <bool>
        """
        return self._chartType != None
    
    def horizontalRuler( self ):
        """
        Returns the horizontal ruler for this widget item.
        
        :return     <projexui.widgets.xchartwidget.XChartRuler> || None
        """
        if ( not self.scene() ):
            return None
        return self.scene().horizontalRuler()
    
    def horizontalOffset( self ):
        """
        Returns the horizontal offset for this item.
        
        :return     <int>
        """
        return self._horizontalOffset
    
    def hoverMoveEvent( self, event ):
        """
        Tracks whether or not this item is being hovered.
        
        :param      event | <QEvent>
        """
        point = event.pos()
        
        found_key = ''
        found = None
        for key, value, subpath in self._subpaths:
            if subpath.contains(point):
                found = subpath
                found_key = key
                break
        
        if found:
            # update the tooltip
            tip    = self.keyToolTip(found_key)
            if ( tip ):
                widget = self.scene().chartWidget()
                anchor = XPopupWidget.Anchor.RightCenter
                
                # show the popup widget
                XPopupWidget.showToolTip(tip, 
                                         anchor = anchor,
                                         parent = widget,
                                         foreground = self.color().darker(120),
                                         background = self.alternateColor())
            
            if ( found != self._hoveredPath ):
                self._hoveredPath = found
                self.update()
    
    def hoverLeaveEvent( self, event ):
        """
        Tracks whether or not this item is being hovered.
        
        :param      event | <QEvent>
        """
        super(XChartWidgetItem, self).hoverEnterEvent(event)
        
        self._hoveredPath = None
        self.update()
    
    def isShaded( self ):
        """
        Returns the shaded state for this item.
        
        :return     <bool>
        """
        return self._shaded
    
    def keyColor( self, key ):
        """
        Returns a color for the inputed key (used in pie charts).
        
        :param      key | <str>
        
        :return     <QColor>
        """
        self._keyColors.setdefault(nativestring(key), self.color())
        return self._keyColors[nativestring(key)]
    
    def keyToolTip( self, key ):
        """
        Returns the tool tip for this key.
        
        :param      key | <str>
        
        :return     <str>
        """
        return self._keyToolTips.get(nativestring(key), '')
    
    def mousePressEvent(self, event):
        """
        Creates the drag event for this item.
        
        :param      event | <QMousePressEvent>
        """
        near_x, near_y = self.nearestPoint(event.pos())
        
        data = self.dragData(x=near_x, y=near_y)
        self.startDrag(data)
        
        super(XChartWidgetItem, self).mousePressEvent(event)
    
    def nearestPoint(self, pos):
        """
        Returns the nearest graphing point for this item based on the
        inputed graph position.
        
        :param      pos | <QPoint>
        
        :return     (<variant> x, <variant> y)
        """
        # lookup subpaths
        for x, y, path in self._subpaths:
            if path.contains(pos):
                return (x, y)
        
        return (None, None)
    
    def orientation( self ):
        """
        Returns the orienatation for this item (used in bar charts).
        
        :return     <Qt.Orienation>
        """
        return self._orientation
    
    def paint( self, painter, option, widget ):
        """
        Draws this item with the inputed painter.
        
        :param      painter | <QPainter>
                    rect    | <QRect>
        """
        if self._dirty:
            self.rebuild()
        
        scene   = self.scene()
        if not scene:
            return
        
        grid    = scene.gridRect()
        typ     = self.chartType()
        
        # draw the line chart
        if typ == XChartScene.Type.Line:
            painter.setRenderHint(painter.Antialiasing)
            
            # draw the path area
            area = self._buildData.get('path_area')
            if area and self.isShaded():
                clr   = QColor(self.color())
                
                clr.setAlpha(120)
                painter.setPen(Qt.NoPen)
                painter.setBrush(clr)
                
                painter.drawPath(area)
            
            # draw the line data
            pen = QPen(self.color())
            pen.setWidth(2)
            
            painter.setPen(pen)
            painter.setBrush(Qt.NoBrush)
            
            painter.drawPath(self.path())
            
            if ( self.showPointsInLine() ):
                palette = QApplication.palette()
                pen = QPen(palette.color(palette.Base))
                pen.setWidth(2)
                
                painter.setBrush(self.color())
                painter.setPen(pen)
                
                for point in self._ellipses:
                    painter.drawEllipse(point, 
                                        self.pointRadius(), 
                                        self.pointRadius())
        
        # draw a bar chart
        elif typ == XChartScene.Type.Bar:
            painter.setRenderHint(painter.Antialiasing)
            
            pen = QPen(self.color())
            pen.setWidth(1)
            painter.setPen(pen)
            
            for key, value, sub_path in self._subpaths:
                gradient = QLinearGradient()
                
                clr = QColor(self.color())
                
                if ( sub_path != self._hoveredPath ):
                    clr.setAlpha(130)
                
                gradient.setColorAt(0.0,  clr.lighter(140))
                gradient.setColorAt(0.1,  clr.lighter(120))
                gradient.setColorAt(0.25, clr.lighter(110))
                gradient.setColorAt(1.0,  clr.lighter(105))
                
                if ( self.orientation() == Qt.Horizontal ):
                    gradient.setStart(0, sub_path.boundingRect().top())
                    gradient.setFinalStop(0, sub_path.boundingRect().bottom())
                else:
                    gradient.setStart(sub_path.boundingRect().left(), 0)
                    gradient.setFinalStop(sub_path.boundingRect().right(), 0)
                
                painter.setBrush(gradient)
                painter.drawPath(sub_path)
        
        # draw a simple pie chart (calculated by scene)
        elif typ == XChartScene.Type.Pie:
            painter.setRenderHint(painter.Antialiasing)
            
            center   = self.pieCenter()
            radius   = self.radius()
            
            for key, value, sub_path in self._subpaths:
                clr = self.keyColor(key)
                
                gradient = QRadialGradient(QPointF(0, 0), radius)
                
                a = QColor(clr.lighter(140))
                b = QColor(clr.lighter(110))
                
                a.setAlpha(40)
                b.setAlpha(80)
                
                # look for mouse over
                if ( sub_path == self._hoveredPath ):
                    a.setAlpha(100)
                    b.setAlpha(200)
                
                gradient.setColorAt(0, a)
                gradient.setColorAt(1, b)
                
                pen = QPen(clr)
                pen.setWidth(1)
                
                painter.setBrush(gradient)
                painter.setPen(pen)
                
                painter.drawPath(sub_path)
    
    def pieAxis( self ):
        """
        Returns the axis that is used as the pie value for this item.
        
        :return     <Qt.Axis>
        """
        return self._pieAxis
    
    def pieCenter( self ):
        """
        Returns the center point for the pie for this item.
        
        :return     <QPointF>
        """
        return self._pieCenter
    
    def pointRadius(self):
        """
        Returns the radius for individual points on the line.
        
        :return     <int>
        """
        return self._pointRadius
    
    def randomColor( self ):
        """
        Generates a random color.
        
        :return     <QColor>
        """
        r = random.randint(120, 180)
        g = random.randint(120, 180)
        b = random.randint(120, 180)
        
        return QColor(r, g, b)
    
    def radius( self ):
        """
        Returns the radius for this item for the pie chart.
        
        :return     <float>
        """
        return self._radius
    
    def rebuild( self ):
        """
        Rebuilds the item based on the current points.
        """
        scene       = self.scene()
        if not scene:
            return
        
        self._subpaths = []
        
        grid        = scene.gridRect()
        typ         = self.chartType()
        
        hruler      = scene.horizontalRuler()
        vruler      = scene.verticalRuler()
        
        path        = QPainterPath()
        area        = QPainterPath()
        
        self._buildData.clear()
        self._buildData['path_area'] = area
        
        self.setPos(0, 0)
        
        # draw a line item
        if typ == XChartScene.Type.Line:
            first = True
            pos   = None
            home  = None
            self._ellipses = []
            
            points = self.points()
            if ( self.orientation() == Qt.Horizontal ):
                points.sort(hruler.compareValues, key = lambda x: x[0])
            else:
                points.sort(vruler.compareValues, key = lambda y: y[1])
                points.reverse()
            
            for x, y in self.points():
                pos = scene.mapFromChart(x, y)
                if first:
                    home = QPointF(pos.x(), grid.bottom())
                    area.moveTo(home)
                    area.lineTo(pos)
                    path.moveTo(pos)
                    
                    self._ellipses.append(pos)
                    
                    first = False
                else:
                    path.lineTo(pos)
                    area.lineTo(pos)
                    
                    self._ellipses.append(pos)
            
            if pos and home:
                area.lineTo(pos.x(), grid.bottom())
                area.lineTo(home)
        
        # draw a bar item
        elif typ == XChartScene.Type.Bar:
            barsize = self.barSize()
            horiz   = self.orientation() == Qt.Horizontal
            
            for x, y in self.points():
                pos = scene.mapFromChart(x, y)
                subpath = QPainterPath()
                if horiz:
                    r = min(grid.bottom() - pos.y(), 8)
                    
                    subpath.moveTo(pos.x() - barsize / 2.0, grid.bottom())
                    subpath.lineTo(pos.x() - barsize / 2.0, pos.y() + r)
                    subpath.quadTo(pos.x() - barsize / 2.0, pos.y(),
                                   pos.x() - barsize / 2.0 + r, pos.y())
                    
                    subpath.lineTo(pos.x() + barsize / 2.0 - r, pos.y())
                    subpath.quadTo(pos.x() + barsize / 2.0, pos.y(),
                                   pos.x() + barsize / 2.0, pos.y() + r)
                    
                    subpath.lineTo(pos.x() + barsize / 2.0, grid.bottom())
                    subpath.lineTo(pos.x() - barsize / 2.0, grid.bottom())
                else:
                    subpath.moveTo(grid.left(), pos.y() - barsize / 2.0)
                    subpath.lineTo(pos.x(),     pos.y() - barsize / 2.0)
                    subpath.lineTo(pos.x(),     pos.y() + barsize / 2.0)
                    subpath.lineTo(grid.left(), pos.y() + barsize / 2.0)
                    subpath.lineTo(grid.left(), pos.y() - barsize / 2.0)
                
                path.addPath(subpath)
                self._subpaths.append((x, y, subpath))
        
        # draw a pie chart
        elif typ == XChartScene.Type.Pie:
            if self.orientation() == Qt.Horizontal:
                key_index   = 0
                value_index = 1
                value_ruler = self.verticalRuler()
            else:
                key_index   = 1
                value_index = 0
                value_ruler = self.horizontalRuler()
        
            pie_values = {}
            
            for point in self.points():
                key     = point[key_index]
                value   = point[value_index]
                
                pie_values.setdefault(key, [])
                pie_values[key].append(value)
        
            for key, values in pie_values.items():
                pie_values[key] = value_ruler.calcTotal(values)
            
            total = max(1, value_ruler.calcTotal(pie_values.values()))
            
            # calculate drawing parameters
            center   = self.pieCenter()
            radius   = self.radius()
            diameter = radius * 2
            angle    = 0
            bound    = QRectF(-radius, -radius, diameter, diameter)
            
            for key, value in sorted(pie_values.items(), key = lambda x: x[1]):
                # calculate the percentage
                perc  = float(value) / total
                
                # calculate the angle as the perc * 360
                item_angle = perc * 360
                self.setPos(center)
                
                sub_path = QPainterPath()
                sub_path.arcTo(bound, angle, item_angle)
                sub_path.lineTo(0, 0)
                
                path.addPath(sub_path)
                self._subpaths.append((key, value, sub_path))
                
                angle += item_angle
                
        self.setPath(path)
        self._dirty = False
    
    def points( self ):
        """
        Returns a list of the points for this item.
        
        :return     [(<variant> x, <variant> y), ..]
        """
        return self._points
    
    def setAlternateColor( self, color ):
        """
        Sets the alternate color for this widget to the inputed color.
        
        :param      color | <QColor>
        """
        self._alternateColor = QColor(color)
    
    def setChartType( self, chartType ):
        """
        Sets the chart type for this item.  Setting the item to a None chart 
        type will signal it to use the default scenes chart type.
        
        :param      chartType | <XChartScene.Type>
        """
        self._chartType = chartType
        self._dirty = True
    
    def setColor( self, color ):
        """
        Sets the color for this widget to the inputed color.
        
        :param      color | <QColor>
        """
        self._color = QColor(color)
        self.setAlternateColor(self._color.lighter(140))
    
    def setDirty( self, state = True ):
        """
        Sets whether or not this item is dirty.
        
        :param      state | <bool>
        """
        self._dirty
    
    def setDragData(self, data, x=None, y=None):
        """
        Sets the drag data for this chart item to the inputed data.
        
        :param      data | <QMimeData> || None
        """
        self._dragData[(x, y)] = data
    
    def setKeyColor( self, key, color ):
        """
        Sets the color used when rendering pie charts.
        
        :param      key   | <str>
                    color | <QColor>
        """
        self._keyColors[nativestring(key)] = QColor(color)
    
    def setKeyToolTip( self, key, tip ):
        """
        Sets the tool tip for the specified key.
        
        :param      key | <str>
                    tip | <str>
        """
        self._keyToolTips[nativestring(key)] = tip
    
    def setHorizontalOffset( self, offset ):
        """
        Sets the horizontal offset for this item.
        
        :param     offset | <int>
        """
        self._horizontalOffset = offset
    
    def setPieCenter( self, center ):
        """
        Sets the center for the pie for the chart.
        
        :param      center | <QPointF>
        """
        self._pieCenter = center
    
    def setPointRadius(self, radius):
        """
        Sets the point radius for this line.
        
        :param      radius | <int>
        """
        self._pointRadius = radius
    
    def setPoints(self, points):
        """
        Sets the points values for this chart widget item.
        
        :param      points | [(<variant> x, <variant> y), ..]
        """
        self._points = points[:]
    
    def setPos( self, *args ):
        super(XChartWidgetItem, self).setPos(*args)
        
        if ( self._horizontalOffset or self._verticalOffset ):
            offset = QPointF(self._horizontalOffset, self._verticalOffset)
            super(XChartWidgetItem, self).setPos(self.pos() + offset)
    
    def setPieAxis( self, pieAxis ):
        """
        Sets the axis that will be used for the pie chart for this item.  This
        will only apply when the item itself defines itself as a pie chart, 
        otherwise, the scene will determine it when the scene is rendered as a
        pie chart.
        
        :param      pieAxis | <Qt.Axis>
        """
        self._pieAxis = pieAxis
    
    def setRadius( self, radius ):
        """
        Sets the radius size for this item.
        
        :param      radius | <float>
        """
        self._radius = radius
    
    def setShaded( self, state ):
        """
        Sets whether or not to shade line items in this graph.
        
        :param      state | <bool>
        """
        self._shaded = state
    
    def setShowPointsInLine( self, state ):
        """
        Sets whether or not to show points in line mode.
        
        :param      state | <bool>
        """
        self._showPointsInLine = state
    
    def setTitle( self, title ):
        """
        Sets the title text for this chart widget item.
        
        :param      title | <str>
        """
        self._title = title
    
    def startDrag(self, data):
        """
        Starts dragging information from this chart widget based on the
        dragData associated with this item.
        """
        if not data:
            return
        
        widget = self.scene().chartWidget()
        drag = QDrag(widget)
        drag.setMimeData(data)
        drag.exec_()
    
    def showPointsInLine( self ):
        """
        Returns whether or not to show points in the line.
        
        :return     <bool>
        """
        return self._showPointsInLine
    
    def title( self ):
        """
        Returns the title for this item.
        
        :return     <str>
        """
        return self._title
    
    def verticalRuler( self ):
        """
        Returns the vertical ruler for this widget item.
        
        :return     <projexui.widgets.xchartwidget.XChartRuler> || None
        """
        if ( not self.scene() ):
            return None
        return self.scene().verticalRuler()
 def paint( self, painter, option, widget ):
     """
     Draws this item with the inputed painter.
     
     :param      painter | <QPainter>
                 rect    | <QRect>
     """
     if self._dirty:
         self.rebuild()
     
     scene   = self.scene()
     if not scene:
         return
     
     grid    = scene.gridRect()
     typ     = self.chartType()
     
     # draw the line chart
     if typ == XChartScene.Type.Line:
         painter.setRenderHint(painter.Antialiasing)
         
         # draw the path area
         area = self._buildData.get('path_area')
         if area and self.isShaded():
             clr   = QColor(self.color())
             
             clr.setAlpha(120)
             painter.setPen(Qt.NoPen)
             painter.setBrush(clr)
             
             painter.drawPath(area)
         
         # draw the line data
         pen = QPen(self.color())
         pen.setWidth(2)
         
         painter.setPen(pen)
         painter.setBrush(Qt.NoBrush)
         
         painter.drawPath(self.path())
         
         if ( self.showPointsInLine() ):
             palette = QApplication.palette()
             pen = QPen(palette.color(palette.Base))
             pen.setWidth(2)
             
             painter.setBrush(self.color())
             painter.setPen(pen)
             
             for point in self._ellipses:
                 painter.drawEllipse(point, 
                                     self.pointRadius(), 
                                     self.pointRadius())
     
     # draw a bar chart
     elif typ == XChartScene.Type.Bar:
         painter.setRenderHint(painter.Antialiasing)
         
         pen = QPen(self.color())
         pen.setWidth(1)
         painter.setPen(pen)
         
         for key, value, sub_path in self._subpaths:
             gradient = QLinearGradient()
             
             clr = QColor(self.color())
             
             if ( sub_path != self._hoveredPath ):
                 clr.setAlpha(130)
             
             gradient.setColorAt(0.0,  clr.lighter(140))
             gradient.setColorAt(0.1,  clr.lighter(120))
             gradient.setColorAt(0.25, clr.lighter(110))
             gradient.setColorAt(1.0,  clr.lighter(105))
             
             if ( self.orientation() == Qt.Horizontal ):
                 gradient.setStart(0, sub_path.boundingRect().top())
                 gradient.setFinalStop(0, sub_path.boundingRect().bottom())
             else:
                 gradient.setStart(sub_path.boundingRect().left(), 0)
                 gradient.setFinalStop(sub_path.boundingRect().right(), 0)
             
             painter.setBrush(gradient)
             painter.drawPath(sub_path)
     
     # draw a simple pie chart (calculated by scene)
     elif typ == XChartScene.Type.Pie:
         painter.setRenderHint(painter.Antialiasing)
         
         center   = self.pieCenter()
         radius   = self.radius()
         
         for key, value, sub_path in self._subpaths:
             clr = self.keyColor(key)
             
             gradient = QRadialGradient(QPointF(0, 0), radius)
             
             a = QColor(clr.lighter(140))
             b = QColor(clr.lighter(110))
             
             a.setAlpha(40)
             b.setAlpha(80)
             
             # look for mouse over
             if ( sub_path == self._hoveredPath ):
                 a.setAlpha(100)
                 b.setAlpha(200)
             
             gradient.setColorAt(0, a)
             gradient.setColorAt(1, b)
             
             pen = QPen(clr)
             pen.setWidth(1)
             
             painter.setBrush(gradient)
             painter.setPen(pen)
             
             painter.drawPath(sub_path)
Beispiel #41
0
class XGanttViewItem(QGraphicsRectItem):
    def __init__(self, treeItem):
        super(XGanttViewItem, self).__init__()
        
        # define custom properties
        self._color                     = QColor('white')
        self._alternateColor            = QColor(230, 230, 230)
        self._highlightColor            = QColor('yellow')
        self._alternateHighlightColor   = self._highlightColor.darker(110)
        self._textColor                 = QColor('black')
        self._borderColor               = QColor(50, 50, 50)
        self._progressColor             = QColor(200, 200, 250)
        self._alternateProgressColor    = QColor(180, 180, 230)
        self._showProgress              = True
        self._padding                   = 3
        self._borderRadius              = 5
        self._percentComplete           = 0
        self._text                      = ''
        self._syncing                   = False
        self._treeItem                  = weakref.ref(treeItem)
        
        # setup standard properties
        flags  = self.ItemIsSelectable 
        flags |= self.ItemIsFocusable
        
        if treeItem.flags() & Qt.ItemIsEditable:
            flags |= self.ItemIsMovable
        
        effect = QGraphicsDropShadowEffect()
        effect.setXOffset(0)
        effect.setYOffset(0)
        effect.setColor(QColor(40, 40, 40, 100))
        effect.setBlurRadius(10)
        
        self.setFlags( flags )
        self.setAcceptHoverEvents(True)
        self.setGraphicsEffect(effect)
        
        # need this flag for Qt 4.6+
        try:
            self.setFlag(self.ItemSendsGeometryChanges)
        except AttributeError:
            pass
    
    def alternateColor( self ):
        """
        Returns the alternate color for this widget.
        
        :return     <QColor>
        """
        return self._alternateColor
    
    def alternateHighlightColor( self ):
        """
        Returns the alternate selection color for this item.
        
        :return     <QColor>
        """
        return self._alternateHighlightColor
    
    def alternateProgressColor( self ):
        """
        Returns the alternate progress color that will be used when drawing a
        progress bar for this item.
        
        :return     <QColor>
        """
        return self._alternateProgressColor
    
    def borderColor( self ):
        """
        Returns the border color that will be used when drawing this item.
        
        :return     <QColor>
        """
        return self._borderColor
    
    def borderRadius( self ):
        """
        Returns the border radius for this item.
        
        :return     <int>
        """
        return self._borderRadius
    
    def color( self ):
        """
        Returns the color for this widget.
        
        :return     <QColor>
        """
        return self._color
    
    def highlightColor( self ):
        """
        Returns the primary color used for highlighting this view item.
        
        :return     <QColor>
        """
        return self._highlightColor
    
    def isSyncing( self ):
        """
        Return whether or not this item is syncing.
        
        :return     <bool>
        """
        return self._syncing
    
    def itemChange( self, change, value ):
        """
        Overloads the base QGraphicsItem itemChange method to block user ability
        to move along the y-axis.
        
        :param      change      <int>
        :param      value       <variant>
        
        :return     <variant>
        """
        # only operate when it is a visible, geometric change
        if not (self.isVisible() and change == self.ItemPositionChange):
            return super(XGanttViewItem, self).itemChange( change, value )
        
        if self.isSyncing():
            return super(XGanttViewItem, self).itemChange(change, value)
        
        scene = self.scene()
        # only operate when we have a scene
        if not scene:
            return super(XNode, self).itemChange( change, value )
        
        point = value.toPointF()
        point.setY(self.pos().y())
        
        # create the return value
        new_value = wrapVariant(point)
        
        # call the base method to operate on the new point
        return super(XGanttViewItem, self).itemChange(change, new_value)
    
    def itemStyle(self):
        """
        Returns the style that this item will be rendered as.
        
        :return     <XGanttWidgetItem.ItemStyle>
        """
        item = self.treeItem()
        if item:
            return item.itemStyle()
        return 0
    
    def mouseReleaseEvent(self, event):
        """
        Overloads the mouse release event to apply the current changes.
        
        :param      event | <QEvent>
        """
        super(XGanttViewItem, self).mouseReleaseEvent(event)
        
        if not self.flags() & self.ItemIsMovable:
            return
        
        # force the x position to snap to the nearest date
        scene = self.scene()
        
        if scene:
            gantt  = scene.ganttWidget()
            curr_x = self.pos().x() + gantt.cellWidth() / 2.0
            new_x  = curr_x - curr_x % gantt.cellWidth()
            self.setPos(new_x, self.pos().y())
        
        # look for date based times
        gantt = self.scene().ganttWidget()
        
        # determine hour/minute information
        if gantt.timescale() in (gantt.Timescale.Minute,
                                 gantt.Timescale.Hour,
                                 gantt.Timescale.Day):
            dstart = self.scene().datetimeAt(self.pos().x())
            dend = self.scene().datetimeAt(self.pos().x() + self.rect().width())
            dend.addSecs(-60)
        else:
            dstart = self.scene().dateAt(self.pos().x())
            dend   = self.scene().dateAt(self.pos().x() + self.rect().width())
            dend   = dend.addDays(-1)
        
        item = self._treeItem()
        if item:
            item.viewChanged(dstart, dend)
        
    def padding( self ):
        """
        Returns the top and bottom padding for this item.
        
        :return     <int>
        """
        return self._padding
    
    def paint( self, painter, option, widget ):
        """
        Paints this item to the system.
        
        :param      painter | <QPainter>
                    option  | <QStyleOptionGraphicItem>
                    widget  | <QWidget>
        """
        style       = self.itemStyle()
        ItemStyle   = self.treeItem().ItemStyle
        
        if ( style == ItemStyle.Group ):
            self.paintGroup( painter )
        
        elif ( style == ItemStyle.Milestone ):
            self.paintMilestone( painter )
        
        else:
            self.paintNormal( painter )
    
    def paintGroup( self, painter ):
        """
        Paints this item as the group look.
        
        :param      painter | <QPainter>
        """
        # generate the rect
        rect    = self.rect()
        
        padding = self.padding()
        gantt   = self.scene().ganttWidget()
        cell_w  = gantt.cellWidth()
        cell_h  = gantt.cellHeight()
        
        x       = 0
        y       = self.padding()
        w       = rect.width()
        h       = rect.height() - (padding + 1)
        
        # grab the color options
        color       = self.color()
        alt_color   = self.alternateColor()
        
        if ( self.isSelected() ):
            color       = self.highlightColor()
            alt_color   = self.alternateHighlightColor()
        
        # create the background brush
        gradient = QLinearGradient()
        gradient.setStart(0, 0)
        gradient.setFinalStop(0, h)
        
        gradient.setColorAt(0,   color)
        gradient.setColorAt(0.8, alt_color)
        gradient.setColorAt(1,   color)
        
        painter.setPen(self.borderColor())
        painter.setBrush(QBrush(gradient))
        
        pen = painter.pen()
        pen.setWidthF(0.5)
        painter.setPen(pen)
        painter.setRenderHint( painter.Antialiasing )
        
        path = QPainterPath()
        path.moveTo(x - cell_w / 4.0, y)
        path.lineTo(w + cell_w / 4.0, y)
        path.lineTo(w + cell_w / 4.0, y + h / 2.0)
        path.lineTo(w, h)
        path.lineTo(w - cell_w / 4.0, y + h / 2.0)
        path.lineTo(x + cell_w / 4.0, y + h / 2.0)
        path.lineTo(x, h)
        path.lineTo(x - cell_w / 4.0, y + h / 2.0)
        path.lineTo(x - cell_w / 4.0, y)
        
        painter.drawPath(path)
        
        # create the progress brush
        if ( self.showProgress() ):
            gradient = QLinearGradient()
            gradient.setStart(0, 0)
            gradient.setFinalStop(0, h)
            gradient.setColorAt(0, self.progressColor())
            gradient.setColorAt(0.8, self.alternateProgressColor())
            gradient.setColorAt(1, self.progressColor())
            
            prog_w = (w - 4) * (self._percentComplete/100.0)
            
            painter.setPen(Qt.NoPen)
            painter.setBrush(QBrush(gradient))
            painter.drawRect(x, y, prog_w, y + h / 2.0)
        
        # draw the text on this item
        if ( self.text() ):
            painter.setPen(self.textColor())
            painter.drawText(x, y, w, h, Qt.AlignCenter, self.text())
    
    def paintMilestone( self, painter ):
        """
        Paints this item as the milestone look.
        
        :param      painter | <QPainter>
        """
        # generate the rect
        rect    = self.rect()
        
        padding = self.padding()
        gantt   = self.scene().ganttWidget()
        cell_w  = gantt.cellWidth()
        cell_h  = gantt.cellHeight()
        
        x       = rect.width() - cell_w
        y       = self.padding()
        w       = cell_w
        h       = rect.height() - padding - 2
        
        # grab the color options
        color       = self.color()
        alt_color   = self.alternateColor()
        
        if ( self.isSelected() ):
            color       = self.highlightColor()
            alt_color   = self.alternateHighlightColor()
        
        # create the background brush
        gradient = QLinearGradient()
        gradient.setStart(0, 0)
        gradient.setFinalStop(0, h)
        
        gradient.setColorAt(0,   color)
        gradient.setColorAt(0.8, alt_color)
        gradient.setColorAt(1,   color)
        
        painter.setPen(self.borderColor())
        painter.setBrush(QBrush(gradient))
        
        pen = painter.pen()
        pen.setWidthF(0.5)
        painter.setPen(pen)
        painter.setRenderHint( painter.Antialiasing )
        
        path = QPainterPath()
        path.moveTo(x - cell_w / 3.0, y + h / 2.0)
        path.lineTo(x, y)
        path.lineTo(x + cell_w / 3.0, y + h / 2.0)
        path.lineTo(x, y + h)
        path.lineTo(x - cell_w / 3.0, y + h / 2.0)
        
        painter.drawPath(path)
        
    def paintNormal( self, painter ):
        """
        Paints this item as the normal look.
        
        :param      painter | <QPainter>
        """
        # generate the rect
        rect    = self.rect()
        
        x       = 0
        y       = self.padding()
        w       = rect.width()
        h       = rect.height() - (2 * self.padding()) - 1
        radius  = self.borderRadius()
        
        # grab the color options
        color       = self.color()
        alt_color   = self.alternateColor()
        
        if ( self.isSelected() ):
            color       = self.highlightColor()
            alt_color   = self.alternateHighlightColor()
        
        # create the background brush
        gradient = QLinearGradient()
        gradient.setStart(0, 0)
        gradient.setFinalStop(0, h)
        
        gradient.setColorAt(0,   color)
        gradient.setColorAt(0.8, alt_color)
        gradient.setColorAt(1,   color)
        painter.setPen(self.borderColor())
        
        if ( radius ):
            painter.setRenderHint(painter.Antialiasing)
            pen = painter.pen()
            pen.setWidthF(0.5)
            painter.setPen(pen)
        
        painter.setBrush(QBrush(gradient))
        painter.drawRoundedRect(x, y, w, h, radius, radius)
        
        # create the progress brush
        if ( self.showProgress() ):
            gradient = QLinearGradient()
            gradient.setStart(0, 0)
            gradient.setFinalStop(0, h)
            gradient.setColorAt(0, self.progressColor())
            gradient.setColorAt(0.8, self.alternateProgressColor())
            gradient.setColorAt(1, self.progressColor())
            
            prog_w = (w - 4) * (self._percentComplete/100.0)
            radius -= 2
            
            painter.setPen(Qt.NoPen)
            painter.setBrush(QBrush(gradient))
            painter.drawRoundedRect(x + 2, y + 2, prog_w, h - 4, radius, radius)
        
        # draw the text on this item
        if ( self.text() ):
            painter.setPen(self.textColor())
            painter.drawText(x, y, w, h, Qt.AlignCenter, self.text())
    
    def percentComplete( self ):
        """
        Returns the percent complete that this item is in.
        
        :return     <int>
        """
        return self._percentComplete
    
    def progressColor( self ):
        """
        Returns the color that will be displayed with the progress bar for this
        widget.
        
        :return     <QColor>
        """
        return self._progressColor
    
    def setAlternateColor( self, color ):
        """
        Sets the alternate color for this widget to the inputed color.
        
        :param      color | <QColor>
        """
        self._alternateColor = QColor(color)
    
    def setAlternateProgressColor( self, color ):
        """
        Sets the alternate progress color that will be used when drawing a
        progress bar for this item.
        
        :return     <QColor>
        """
        self._alternateProgressColor = QColor(color)
    
    def setAlternateHighlightColor( self, color ):
        """
        Sets the alternate selection color for this item to the inputed color.
        
        :param      color | <QColor>
        """
        self._alternateHighlightColor = QColor(color)
    
    def setBorderRadius( self, radius ):
        """
        Sets the radius that will be used for this item to the inputed radius.
        
        :param      radius | <int>
        """
        self._borderRadius = radius
    
    def setColor( self, color ):
        """
        Sets the color for this widget.
        
        :param      color | <QColor> || <str>
        """
        self._color = QColor(color)
        self.setAlternateColor(self._color.darker(110))
    
    def setHighlightColor( self, color ):
        """
        Sets the primary color used for highlighting this item.
        
        :param      color | <QColor>
        """
        self._highlightColor = QColor(color)
        self.setAlternateHighlightColor(self._highlightColor.darker(110))
    
    def setPadding( self, padding ):
        """
        Sets the padding that will be used to pad the top and bottom for this
        item.
        
        :param      padding | <int>
        """
        self._padding = padding
    
    def setPercentComplete( self, percent ):
        """
        Sets the completion percentage for this item to the inputed amount.
        
        :param      percent | <int>
        """
        self._percentComplete = percent
    
    def setProgressColor( self, color ):
        """
        Sets the color that for the progress bar for this item.
        
        :param      color | <QColor>
        """
        self._progressColor = QColor(color)
        self.setAlternateProgressColor(self._progressColor.darker(110))
    
    def setShowProgress( self, state ):
        """
        Sets whether or not the progress information should be displayed.
        
        :param      state | <bool>
        """
        self._showProgress = state
    
    def setSyncing( self, state ):
        """
        Sets whether or not this item is syncing.
        
        :param      state | <bool>
        """
        self._syncing = state
    
    def setText( self, text ):
        """
        Sets the text for this item.
        
        :param      text | <str>
        """
        self._text = text
    
    def setTextColor( self, color ):
        """
        Sets the color that will be used for this widget's text.
        
        :param      color | <QColor> || <str>
        """
        self._textColor = QColor(color)
    
    def showProgress( self ):
        """
        Returns whether or not the progress should be displayed for this item.
        
        :return     <bool>
        """
        return self._showProgress
    
    def text( self ):
        """
        Returns the text for this widget.
        
        :return     <str>
        """
        return self._text
    
    def textColor( self ):
        """
        Returns the text color that will be used for this item's text.
        
        :return     <QColor>
        """
        return self._textColor
    
    def treeItem( self ):
        """
        Returns the tree item that is linked with this view item.
        
        :return     <XGanttWidgetItem>
        """
        return self._treeItem()